Messages in this thread | | | From | Duncan Sands <> | Subject | possible recursive locking in ATM layer | Date | Tue, 4 Jul 2006 17:59:42 +0200 |
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Linux version 2.6.17-git22 (duncan@baldrick) (gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)) #20 PREEMPT Tue Jul 4 10:35:04 CEST 2006
[ 2381.598609] ============================================= [ 2381.619314] [ INFO: possible recursive locking detected ] [ 2381.635497] --------------------------------------------- [ 2381.651706] atmarpd/2696 is trying to acquire lock: [ 2381.666354] (&skb_queue_lock_key){-+..}, at: [<c028c540>] skb_migrate+0x24/0x6c [ 2381.688848] [ 2381.688849] but task is already holding lock: [ 2381.706406] (&skb_queue_lock_key){-+..}, at: [<c028c536>] skb_migrate+0x1a/0x6c [ 2381.728898] [ 2381.728900] other info that might help us debug this: [ 2381.748534] 2 locks held by atmarpd/2696: [ 2381.760560] #0: (ioctl_mutex){--..}, at: [<c028f814>] mutex_lock+0x1c/0x1f [ 2381.782066] #1: (&skb_queue_lock_key){-+..}, at: [<c028c536>] skb_migrate+0x1a/0x6c [ 2381.805935] [ 2381.805937] stack backtrace: [ 2381.819319] [<c010398b>] show_trace_log_lvl+0x54/0xfd [ 2381.834838] [<c0104aaa>] show_trace+0xd/0x10 [ 2381.848009] [<c0104ac4>] dump_stack+0x17/0x1b [ 2381.861436] [<c0129e46>] __lock_acquire+0x76c/0x9d3 [ 2381.876582] [<c012a38a>] lock_acquire+0x5e/0x80 [ 2381.890656] [<c029075f>] _spin_lock+0x23/0x32 [ 2381.904220] [<c028c540>] skb_migrate+0x24/0x6c [ 2381.919084] [<c028db9d>] clip_ioctl+0x2a1/0x480 [ 2381.934248] [<c028a2e1>] vcc_ioctl+0x241/0x2f8 [ 2381.949142] [<c024475d>] sock_ioctl+0x191/0x1b7 [ 2381.964134] [<c015ddec>] do_ioctl+0x20/0x65 [ 2381.977330] [<c015e089>] vfs_ioctl+0x258/0x26b [ 2381.991283] [<c015e0c6>] sys_ioctl+0x2a/0x44 [ 2382.004711] [<c0102791>] sysenter_past_esp+0x56/0x8d - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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